JEE Mathematics

Learn and practice General Knowledge questions and answers on Mathematics with very easy and understandable explanations. GK questions are very

91. Which of the following represents coinitial vector? A. c, d B. m, b C. b, d D. b, d

81. The summation of two unit vectors is a third unit vector, then the modulus of the difference of the

71. The tangent to the curve y = 2×2 -x + 1 is parallel to the line y = 3x

61. Find the maximum profit that a company can make, if the profit function is given by P(x) = 41

51. If the points (3, -2), (x, 2), (8, 8) are collinear, then find the value of x. A. 2

31. If the order of the matrix is m×n, then how many elements will there be in the matrix? A.

41. Let * be a binary operation on Q, defined by a * b = 3ab5 is A. Commutative B.

21. What is the value of sin-1(-x) for all x belongs to [-1, 1]? A. sin-1(-x)/2 B. -sin-1(x) C. sin-1(x)

11. A function f:R→R defined by f(x)=5×4+2 is one – one but not onto. A. True B. False Answer Option